18820410

素因数分解:

$2^1\times 3^1\times 5^1\times 7^3\times {\mathrm{31}}^1\times {\mathrm{59}}^1$

素因数の和:121

約数の個数: 128

約数和(自身を含む): 55296000

約数和(自身を除く): 36475590

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 31, 35, 42, 49, 59, 62, 70, 93, 98, 105, 118, 147, 155, 177, 186, 210, 217, 245, 294, 295, 310, 343, 354, 413, 434, 465, 490, 590, 651, 686, 735, 826, 885, 930, 1029, 1085, 1239, 1302, 1470, 1519, 1715, 1770, 1829, 2058, 2065, 2170, 2478, 2891, 3038, 3255, 3430, 3658, 4130, 4557, 5145, 5487, 5782, 6195, 6510, 7595, 8673, 9114, 9145, 10290, 10633, 10974, 12390, 12803, 14455, 15190, 17346, 18290, 20237, 21266, 22785, 25606, 27435, 28910, 31899, 38409, 40474, 43365, 45570, 53165, 54870, 60711, 63798, 64015, 76818, 86730, 89621, 101185, 106330, 121422, 128030, 159495, 179242, 192045, 202370, 268863, 303555, 318990, 384090, 448105, 537726, 607110, 627347, 896210, 1254694, 1344315, 1882041, 2688630, 3136735, 3764082, 6273470, 9410205, 18820410]

約数ペア:

[(1, 18820410), (2, 9410205), (3, 6273470), (5, 3764082), (6, 3136735), (7, 2688630), (10, 1882041), (14, 1344315), (15, 1254694), (21, 896210), (30, 627347), (31, 607110), (35, 537726), (42, 448105), (49, 384090), (59, 318990), (62, 303555), (70, 268863), (93, 202370), (98, 192045), (105, 179242), (118, 159495), (147, 128030), (155, 121422), (177, 106330), (186, 101185), (210, 89621), (217, 86730), (245, 76818), (294, 64015), (295, 63798), (310, 60711), (343, 54870), (354, 53165), (413, 45570), (434, 43365), (465, 40474), (490, 38409), (590, 31899), (651, 28910), (686, 27435), (735, 25606), (826, 22785), (885, 21266), (930, 20237), (1029, 18290), (1085, 17346), (1239, 15190), (1302, 14455), (1470, 12803), (1519, 12390), (1715, 10974), (1770, 10633), (1829, 10290), (2058, 9145), (2065, 9114), (2170, 8673), (2478, 7595), (2891, 6510), (3038, 6195), (3255, 5782), (3430, 5487), (3658, 5145), (4130, 4557)]